There are 8 post offices under PIN code 603310.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ayakonamkolathur B.O | Branch Office | Delivery | Na | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 2 | Isur B.O | Branch Office | Delivery | Madurantakam | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 3 | Karasangal B.O | Branch Office | Delivery | Cheyyur | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 4 | Nerkunam B.O | Branch Office | Delivery | Chengalpattu | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 5 | Perumber Kandigai B.O | Branch Office | Delivery | Madurantakam | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 6 | Sirumailur B.O | Branch Office | Delivery | Madurantakam | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 7 | Sirunagar B.O | Branch Office | Delivery | Madurantakam | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |
| 8 | Thozhupedu S.O | Sub Office | Delivery | Madurantakam | Kanchipuram | Chengalpattu | Chennai Region | Tamil Nadu | Tamilnadu |